Pneumatic dispatch carrier



F 1930. A. DRENKARD, JR 1,745,786

PNEUMATIC DISPATCH CARRIER Filed April 12, 1929 2 Sheets-Shee 1 Snvcntorfldam firenkdrd, Jr

Qtorneg Feb. 4, 1930. ,A. DRENKARD, JR

PNEUMATIC DISPATCH CARRIER Filed April 12, 1929 2 Sheets-Shee 2Ezeelo'ed 01' C25 300 Ans: CANTON ornu w s Feb. '4, 1930 -,UNITEDsi-"Ares? PATENT orries DBENKABZD, OI WEST NEW YORK, NEW JERSEY,ASSIGNOB TO WESTERN 'UKIOH TELEGRAPH COMPANY, OF NEW YORK, N. Y., ACORPORATION OF NEW YORK PHE'UIATIG DISPA'ICH CARRIER Application filedApril 12,

invention relates to pneumatic tube systems or conveyors and has specialreference to a system of this kind used in the conveyance of telegraphmessages, letters and 5 other like articles. More especially the in- Iat these distributing stations the carriers are delivered from thepneumatic tubes and dis-- tributed to other tubes of the system or tosome other distributing means. As is well known, in the handling oftelegrams and other like messages, each article bears the address towhich it. is tobe sent or has distinctive color or has a sticker orother. designation attached 'to it. If opaque carriers are 'used to holdthe messages then they have to be removed and the address read ordesignation noted at thedistributing station before they can beproperlyrouted from that point. Attempts have been made to overcome the losstoftime and the errors occa- *sioned by this manner of routing the carriersand their messages by providing an other- Wise 0 aque' carrier with atransparent win- I dow t ough which the address-or other designation onthe'message may be observed.

"However, this necessitates the use of much" care in placing the-messagein the carrier so that the designation is properly opposite the windowand furthermore the message is Y apt to shift its position during thepa'mge 9 of the message the carrier, so long'as quent station insitioning the message and a frefurth r loss of time at the distributingstation;

The principal object of'the present inven-- tion is tot legrovide anovel form of carrier so construe that, irrespective of the position1929. Serial No. 354,588.

Figure 1 is a perspective view of one form of the improved carrier.

Figure 2 is a longitudinal median section therethrough.

Figure 3 is an end view thereof.

Figure/'4 is a section on the line 44 of Fi re 1Q igure 5 is aperspective view of a modified form of the invention.

Figure 6 is a longitudinal median view through the modified form.

Figure 7 is an end view of this modified form. Figure 8 is a sideelevation of a second modification of the invention.

Figure 9 is a section on the line 99 of Figure 8 showing the carrierclosed and hold- 1ng a message. I t

Figure 10 is a section similar to Figure 9 but "showing the carrieropenfor the extraction or insertion of a message.

In the "form of the invention shown in Figure 1 the body of the deviceis made of a single. transparent tubev 10 of Pyralin, celluloid or othersuitable transparent material. This body forms, a cylindrical tube Openat both ends but at one end there is provided a piston member 11 of feltor the like of such size as to fit snugly in the pneu matic tube throughwhich the carrier is'to I pass. Riveted to this piston is a cup 12 whichreceives one end of the tube 10 so that this end is closed and held tothe piston 11. At the other end of the tube 10 is a collar 13 preferablymade from the same material as the tube and this collar not only acts asa reinforcement for the mouth of the tube but also forms the selectorelement for use 'in connection with certain automatic carrier dis- Itributing mechanisms in which the distribution is controlled by thewidth of the collar. Secured to the inner side of the tube 10 is a smallsubstantially semi-circular tubular guide 14 having a perforated plug orstopper .15 adjacent its free end. Through this stopper slides a wire 16which carries a collar 17, the wire being surrounded by a spring '18 sothat it is constantly urged inwardly.

( tube free for the insertion or withdrawal of the message, the tubebeing afterwards closed by a reversal of this operation.

In the form of the invention shown in Figures 5 to 7 inclusive the bodyis likewise formed of a transparent tube 22, one end of which isreceived in a cup 23 secured to a piston 24, a flange 25 beinginterposed between the cup and pistonto make a closer fit of the carrierin the pneumatic tube. The other or open end is reinforced by a band 26carrying a felt ring 27. In-this'form the message M is retained in thetube 22 by an elongated loop 28 of spring material having one endsecured to the piston 24 as at 252.

In operating this type of message holder the free end'of the loop 28 isgrasped and pulled out'which contracts the loop laterally to theposition shown in dotted lines in Figure 6 whereuponthe message may bereadily removed or a message put in position.

In the form shown in Figures 8 to 10 in clusive the body of the deviceis formed of two arcuate tube sections 30 and 31, each extendingarcuatel more than 180 and here .shown as extending for aboutthreeuarters of a circle. These sections are neste inside I of eachotherand one section is carried by a iston 32while the other section iscarried.

y a piston 33, the sections being interlocked so that they will notslide longitudinally on each other. By rotatin these pistons withrespect to each other the sectlons may be moved between the positionshown in Figure 9 in which the openingsor gaps of the sections do notregister and the position shown v in Figure 10 in which such openings orgaps any position wherein such message cannot be read or observed.

It will be observed that by means-of this construction there is nonecessity of opening" the carrier to ascertain the destination of thecontents when the carrier is relayed from any one tube to any other tubeor to any distributing system and thus a mar ed increase in handlingspeed is effected. Furthermore, this arrangement eliminates thenecessity of attaching to the carrier costly indicating devices WhlChmust be adjusted to indicate various destinations.

This carrier will also ellmmate the necesother I sity for providing alarge number of groups of variously colored, numbered or letteredcarriers, one group being assigned to each possible route which amessage or other contents might traverse.

Also the transparent carrier eliminates the possibility of a. message orother contents lying dead in a carrier which is presumably empty, sincethe entire contents may be seen systems, consisting of a cylindricaltube of transparent material open at both ends, a piston member closingone end of said tube and attached thereto, and article retaining means.at the open opposite end thereof.

4. A message carrier for pneumatic tube systems, consisting of acylindrical tube of transparent material open, at both ends, a

piston memberc'losing one end of said tube and attached thereto,articleretaining means at the open opposite end thereof, and a collar oftransparentmaterial surrounding the open end of said transparent tube.5. A message carrier for neumatic tube systemshavingabody forme oftransarent materia and constructed to permit is e in sertiolr of an articleand means toretain the article withoutobscuring the same.

6.'A message carrier. for pneumatic tube .siystems, having-a bodyconsisting of a cyliner of transparent material and having a collarthereon.

In testimony whereof I afli'x mg signature. A

APAMIDRE Jr.

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